Major Competitive Exams MCQ & Objective Questions
Major Competitive Exams play a crucial role in shaping the academic and professional futures of students in India. These exams not only assess knowledge but also test problem-solving skills and time management. Practicing MCQs and objective questions is essential for scoring better, as they help in familiarizing students with the exam format and identifying important questions that frequently appear in tests.
What You Will Practise Here
Key concepts and theories related to major subjects
Important formulas and their applications
Definitions of critical terms and terminologies
Diagrams and illustrations to enhance understanding
Practice questions that mirror actual exam patterns
Strategies for solving objective questions efficiently
Time management techniques for competitive exams
Exam Relevance
The topics covered under Major Competitive Exams are integral to various examinations such as CBSE, State Boards, NEET, and JEE. Students can expect to encounter a mix of conceptual and application-based questions that require a solid understanding of the subjects. Common question patterns include multiple-choice questions that test both knowledge and analytical skills, making it essential to be well-prepared with practice MCQs.
Common Mistakes Students Make
Rushing through questions without reading them carefully
Overlooking the negative marking scheme in MCQs
Confusing similar concepts or terms
Neglecting to review previous years’ question papers
Failing to manage time effectively during the exam
FAQs
Question: How can I improve my performance in Major Competitive Exams?Answer: Regular practice of MCQs and understanding key concepts will significantly enhance your performance.
Question: What types of questions should I focus on for these exams?Answer: Concentrate on important Major Competitive Exams questions that frequently appear in past papers and mock tests.
Question: Are there specific strategies for tackling objective questions?Answer: Yes, practicing under timed conditions and reviewing mistakes can help develop effective strategies.
Start your journey towards success by solving practice MCQs today! Test your understanding and build confidence for your upcoming exams. Remember, consistent practice is the key to mastering Major Competitive Exams!
Q. What is the phase difference between the voltage and current in a series RLC circuit at resonance? (2023)
A.
0°
B.
90°
C.
180°
D.
45°
Show solution
Solution
At resonance in a series RLC circuit, the phase difference between voltage and current is 0°.
Correct Answer:
A
— 0°
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Q. What is the phase difference between two particles executing simple harmonic motion in the same direction with the same frequency? (2021)
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Solution
If they have the same frequency and direction, the phase difference is 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two particles executing simple harmonic motion in phase? (2021)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
In phase means the phase difference is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles executing simple harmonic motion in the same direction with the same amplitude and frequency? (2023)
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Solution
If two particles are executing simple harmonic motion in the same direction with the same amplitude and frequency, their phase difference is 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two particles in a wave that are 1/4 wavelength apart? (2019)
A.
0 rad
B.
π/2 rad
C.
π rad
D.
3π/2 rad
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Solution
Phase difference (Δφ) = 2π × (distance / wavelength) = 2π × (1/4) = π/2 rad.
Correct Answer:
B
— π/2 rad
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Q. What is the phase difference between two particles in simple harmonic motion that are in the same position at the same time?
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Solution
If two particles are in the same position at the same time in simple harmonic motion, they have a phase difference of 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two particles in simple harmonic motion that are in phase?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
When two particles are in phase, they reach their maximum and minimum displacements at the same time, resulting in a phase difference of 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles in simple harmonic motion that are 90 degrees out of phase?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
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Solution
A phase difference of 90 degrees corresponds to π/2 radians.
Correct Answer:
B
— π/2 radians
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Q. What is the phase difference between two particles in the same medium oscillating in phase? (2023)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
If two particles are in phase, the phase difference is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles in the same phase of oscillation? (2022)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
The phase difference between two particles in the same phase of oscillation is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two particles in the same wave at a distance of λ/2?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
The phase difference between two points in the same wave separated by a distance of λ/2 is π radians.
Correct Answer:
C
— π radians
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Q. What is the phase difference between two particles in the same wave at a distance of half a wavelength? (2022)
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
The phase difference between two points separated by half a wavelength is π radians.
Correct Answer:
C
— π radians
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Q. What is the phase difference between two points on a wave that are 1/4 of a wavelength apart? (2021)
A.
0 rad
B.
π/2 rad
C.
π rad
D.
3π/2 rad
Show solution
Solution
The phase difference Δφ is given by Δφ = (2π/λ) * Δx. For Δx = λ/4, Δφ = (2π/λ) * (λ/4) = π/2 rad.
Correct Answer:
B
— π/2 rad
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Q. What is the phase difference between two points on a wave that are 1/4 wavelength apart?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
The phase difference Δφ between two points separated by a distance of λ/4 is given by Δφ = (2π/λ)(λ/4) = π/2 radians.
Correct Answer:
B
— π/2 radians
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Q. What is the phase difference between two points on a wave that are half a wavelength apart?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
The phase difference between two points that are half a wavelength apart is π radians.
Correct Answer:
C
— π radians
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Q. What is the phase difference between two points on a wave that are one wavelength apart?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
The phase difference between two points on a wave that are one wavelength apart is 2π radians.
Correct Answer:
D
— 2π radians
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Q. What is the phase difference between two waves that are 180° out of phase?
A.
0
B.
90°
C.
180°
D.
360°
Show solution
Solution
A phase difference of 180° corresponds to the waves being out of phase, leading to destructive interference.
Correct Answer:
C
— 180°
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Q. What is the phase difference between two waves that are in phase?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
2π radians
Show solution
Solution
When two waves are in phase, their phase difference is 0 radians.
Correct Answer:
A
— 0 radians
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Q. What is the phase difference between two waves that interfere constructively?
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Solution
Constructive interference occurs when the phase difference is an integer multiple of 2π, which corresponds to a phase difference of 0.
Correct Answer:
A
— 0
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Q. What is the phase difference between two waves that interfere destructively?
A.
0 radians
B.
π/2 radians
C.
π radians
D.
3π/2 radians
Show solution
Solution
Destructive interference occurs when the phase difference is π radians (or an odd multiple of π).
Correct Answer:
C
— π radians
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Q. What is the phase of the cell cycle where DNA is replicated? (2020)
A.
G1 phase
B.
S phase
C.
G2 phase
D.
M phase
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Solution
The S phase (Synthesis phase) is where DNA replication occurs, resulting in the duplication of chromosomes.
Correct Answer:
B
— S phase
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Q. What is the phase of the cell cycle where the cell grows and prepares for mitosis? (2020)
A.
G1 phase
B.
S phase
C.
G2 phase
D.
M phase
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Solution
The G1 phase is the first stage of interphase where the cell grows and prepares for DNA replication.
Correct Answer:
A
— G1 phase
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Q. What is the phenomenon called when a changing magnetic field induces an electric current in a conductor?
A.
Electromagnetic induction
B.
Electrolysis
C.
Magnetic resonance
D.
Thermal conduction
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Solution
The phenomenon of inducing an electric current in a conductor due to a changing magnetic field is known as electromagnetic induction.
Correct Answer:
A
— Electromagnetic induction
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Q. What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a conductor?
A.
Electromagnetic induction
B.
Magnetic resonance
C.
Electrolysis
D.
Magnetization
Show solution
Solution
The phenomenon of inducing an EMF in a conductor due to a changing magnetic field is known as electromagnetic induction.
Correct Answer:
A
— Electromagnetic induction
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Q. What is the phenomenon called when a changing magnetic field induces an electromotive force (EMF) in a circuit?
A.
Electromagnetic induction
B.
Magnetic resonance
C.
Electrolysis
D.
Magnetization
Show solution
Solution
The phenomenon is known as electromagnetic induction, as described by Faraday's law.
Correct Answer:
A
— Electromagnetic induction
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Q. What is the phenomenon called when a conductor moves through a magnetic field and generates an electric current?
A.
Electromagnetic induction
B.
Magnetic hysteresis
C.
Electrostatic induction
D.
Magnetic flux
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Solution
This phenomenon is known as electromagnetic induction, where a changing magnetic field induces an electric current in a conductor.
Correct Answer:
A
— Electromagnetic induction
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Q. What is the phenomenon called when a liquid changes to gas at a temperature below its boiling point?
A.
Evaporation
B.
Condensation
C.
Sublimation
D.
Freezing
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Solution
Evaporation is the process where a liquid changes to gas at temperatures below its boiling point.
Correct Answer:
A
— Evaporation
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Q. What is the phenomenon called when a liquid changes to gas at temperatures below its boiling point?
A.
Evaporation
B.
Condensation
C.
Sublimation
D.
Vaporization
Show solution
Solution
Evaporation is the process where a liquid changes to gas at temperatures below its boiling point.
Correct Answer:
A
— Evaporation
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Q. What is the phenomenon called when a liquid rises in a narrow tube against gravity?
A.
Capillarity
B.
Viscosity
C.
Surface tension
D.
Hydrostatic pressure
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Solution
Capillarity is the phenomenon where a liquid rises in a narrow tube against gravity due to adhesive and cohesive forces.
Correct Answer:
A
— Capillarity
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Q. What is the phenomenon called when an electron transitions from a higher energy level to a lower energy level in an atom?
A.
Ionization
B.
Excitation
C.
Emission
D.
Absorption
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Solution
When an electron transitions from a higher energy level to a lower energy level, it releases energy in the form of a photon, a process known as emission.
Correct Answer:
C
— Emission
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